261
FNCA52 TJSJ 050733 AAA
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO...UPDATED
NATIONAL WEATHER SERVICE SAN JUAN PR
333 AM AST SUN JUL 5 2026
DISCUSSION
A FIRE DANGER STATEMENT HAS BEEN ISSUED FOR TODAY (FROM 10 AM TO
4 PM AST) ACROSS PORTIONS OF THE SOUTHERN COASTAL PLAINS OF PUERTO
RICO DUE TO THE COMBINATION OF CRITICALLY DRY FUELS, HIGH KBDI
VALUES, SUSTAINED WINDS OF 15 TO 20 MPH WITH HIGHER GUSTS, AND
MINIMUM RELATIVE HUMIDITY VALUES IN THE LOW 50S AS MODERATE TO
HIGH CONCENTRATIONS OF SAHARAN DUST CONTINUE MOVING OVER THE
REGION. PROLONGED RAINFALL DEFICITS, ABNORMALLY DRY TO SEVERE
DROUGHT CONDITIONS, AND CRITICALLY DRY FUELS ALSO CONTINUE. THESE
CONDITIONS WILL FAVOR RAPID WILDFIRE IGNITION AND EXTREME FIRE
BEHAVIOR, MEANING ANY FIRES THAT DEVELOP WILL LIKELY SPREAD
QUICKLY AND BECOME DIFFICULT TO CONTAIN. OUTDOOR BURNING IS HIGHLY
DISCOURAGED.
PRZ014-052030-
SOUTHEAST COASTAL PLAINS-
333 AM AST SUN JUL 5 2026
TODAY TONIGHT MON
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 20 20
TEMP (24H TREND) 93 (+4) 75 (-2) 93
RH % (24H TREND) 51 (-3) 91 (+5) 52
WIND 20FT/EARLY(MPH) E 18 E 14 E 19
WIND 20FT/LATE(MPH) E 18 E 14 E 19
MIXING HGT(FT-AGL/MSL)5310 4970
TRANSPORT WND (MPH) E 23 E 24
VENT RATE (KT-FT) 106200 104370
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ015-052030-
SOUTHERN HILLS-
333 AM AST SUN JUL 5 2026
TODAY TONIGHT MON
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 10 20
TEMP (24H TREND) 89 (+4) 71 (-3) 89
RH % (24H TREND) 58 (-6) 96 (+6) 59
WIND 20FT/EARLY(MPH) E 16 E 14 E 16
WIND 20FT/LATE(MPH) E 16 E 14 E 14
MIXING HGT(FT-AGL/MSL)5410 5680
TRANSPORT WND (MPH) E 21 E 23
VENT RATE (KT-FT) 97380 113600
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ016-052030-
NORTH COASTAL PLAINS-
333 AM AST SUN JUL 5 2026
TODAY TONIGHT MON
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 20 20 40
TEMP (24H TREND) 91 (+1) 75 (-2) 91
RH % (24H TREND) 60 (-2) 97 (+7) 61
WIND 20FT/EARLY(MPH) E 17 E 20 E 17
WIND 20FT/LATE(MPH) E 21 E 13 E 21
MIXING HGT(FT-AGL/MSL)5290 5320
TRANSPORT WND (MPH) E 21 E 22
VENT RATE (KT-FT) 95220 101080
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ017-052030-
NORTHERN HILLS-
333 AM AST SUN JUL 5 2026
TODAY TONIGHT MON
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 30 10 50
TEMP (24H TREND) 89 (0) 72 (-2) 90
RH % (24H TREND) 61 (0) 97 (+4) 61
WIND 20FT/EARLY(MPH) E 16 E 17 E 14
WIND 20FT/LATE(MPH) E 18 E 10 E 20
MIXING HGT(FT-AGL/MSL)5710 6560
TRANSPORT WND (MPH) E 17 E 20
VENT RATE (KT-FT) 85650 111520
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ018-052030-
WEST COAST-
333 AM AST SUN JUL 5 2026
TODAY TONIGHT MON
CLOUD COVER MCLEAR CLEAR MCLEAR
PRECIP TYPE TSTMS NONE TSTMS
CHANCE PRECIP (%) 30 0 40
TEMP (24H TREND) 93 (+2) 74 (-1) 93
RH % (24H TREND) 58 (-5) 95 (+4) 59
WIND 20FT/EARLY(MPH) E 14 E 17 E 17
WIND 20FT/LATE(MPH) SE 17 E 12 E 19
MIXING HGT(FT-AGL/MSL)5120 4970
TRANSPORT WND (MPH) E 13 E 17
VENT RATE (KT-FT) 56320 74550
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ019-052030-
EASTERN INTERIOR-
333 AM AST SUN JUL 5 2026
TODAY TONIGHT MON
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 30 40
TEMP (24H TREND) 89 (+2) 73 (-3) 89
RH % (24H TREND) 60 (-3) 98 (+6) 61
WIND 20FT/EARLY(MPH) E 16 E 16 E 17
WIND 20FT/LATE(MPH) E 16 E 16 E 17
MIXING HGT(FT-AGL/MSL)5350 5490
TRANSPORT WND (MPH) E 22 E 22
VENT RATE (KT-FT) 101650 104310
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ022-052030-
LUQUILLO MOUNTAIN RANGE-
333 AM AST SUN JUL 5 2026
TODAY TONIGHT MON
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 30 50
TEMP (24H TREND) 85 (+4) 70 (-4) 85
RH % (24H TREND) 68 (-5) 100 (+5) 69
WIND 20FT/EARLY(MPH) E 14 E 13 E 16
WIND 20FT/LATE(MPH) E 14 E 13 E 16
MIXING HGT(FT-AGL/MSL)5100 4070
TRANSPORT WND (MPH) E 23 E 23
VENT RATE (KT-FT) 102000 81400
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ023-052030-
CENTRAL MOUNTAIN RANGE-
333 AM AST SUN JUL 5 2026
TODAY TONIGHT MON
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS NONE TSTMS
CHANCE PRECIP (%) 30 0 40
TEMP (24H TREND) 89 (+6) 69 (-3) 88
RH % (24H TREND) 62 (-6) 98 (+5) 64
WIND 20FT/EARLY(MPH) E 11 E 10 E 12
WIND 20FT/LATE(MPH) E 12 E 9 E 12
MIXING HGT(FT-AGL/MSL)6280 7360
TRANSPORT WND (MPH) E 13 E 18
VENT RATE (KT-FT) 69080 117760
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ024-052030-
CAYEY MOUNTAIN RANGE-
333 AM AST SUN JUL 5 2026
TODAY TONIGHT MON
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 30 40
TEMP (24H TREND) 85 (+3) 71 (-2) 85
RH % (24H TREND) 66 (-4) 100 (+4) 68
WIND 20FT/EARLY(MPH) E 14 E 13 E 13
WIND 20FT/LATE(MPH) E 14 E 12 E 13
MIXING HGT(FT-AGL/MSL)5120 4510
TRANSPORT WND (MPH) E 24 E 23
VENT RATE (KT-FT) 107520 90200
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ025-052030-
VIEQUES-
333 AM AST SUN JUL 5 2026
TODAY TONIGHT MON
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 30 50
TEMP (24H TREND) 89 (+1) 77 (-2) 89
RH % (24H TREND) 59 (-2) 88 (+4) 60
WIND 20FT/EARLY(MPH) E 19 E 19 E 19
WIND 20FT/LATE(MPH) E 17 E 19 E 19
MIXING HGT(FT-AGL/MSL)3950 3530
TRANSPORT WND (MPH) E 26 E 24
VENT RATE (KT-FT) 90850 74130
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ026-052030-
CULEBRA-
333 AM AST SUN JUL 5 2026
TODAY TONIGHT MON
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 30 50
TEMP (24H TREND) 92 (+3) 78 (-2) 92
RH % (24H TREND) 58 (-7) 89 (+4) 58
WIND 20FT/EARLY(MPH) E 19 E 19 E 19
WIND 20FT/LATE(MPH) E 17 E 19 E 19
MIXING HGT(FT-AGL/MSL)3880 3560
TRANSPORT WND (MPH) E 24 E 26
VENT RATE (KT-FT) 81480 81880
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ027-052030-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
333 AM AST SUN JUL 5 2026
TODAY TONIGHT MON
CLOUD COVER MCLEAR CLEAR MCLEAR
PRECIP TYPE SHOWERS NONE SHOWERS
CHANCE PRECIP (%) 10 0 20
TEMP (24H TREND) 93 (+3) 76 (-1) 93
RH % (24H TREND) 52 (-2) 88 (+6) 54
WIND 20FT/EARLY(MPH) E 20 E 24 E 24
WIND 20FT/LATE(MPH) E 24 E 18 E 26
MIXING HGT(FT-AGL/MSL)5280 5180
TRANSPORT WND (MPH) E 23 E 26
VENT RATE (KT-FT) 105600 119140
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ001-052030-
SAINT THOMAS AND SAINT JOHN-
333 AM AST SUN JUL 5 2026
TODAY TONIGHT MON
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 30 40
TEMP (24H TREND) 87 (+1) 78 (-2) 87
RH % (24H TREND) 63 (-3) 90 (+5) 64
WIND 20FT/EARLY(MPH) E 18 E 20 E 19
WIND 20FT/LATE(MPH) E 17 E 20 E 19
MIXING HGT(FT-AGL/MSL)3730 3520
TRANSPORT WND (MPH) E 25 E 26
VENT RATE (KT-FT) 82060 80960
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ002-052030-
ST CROIX-
333 AM AST SUN JUL 5 2026
TODAY TONIGHT MON
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 30 20
TEMP (24H TREND) 89 (+1) 78 (-1) 89
RH % (24H TREND) 63 (-2) 90 (+3) 64
WIND 20FT/EARLY(MPH) E 18 E 19 E 19
WIND 20FT/LATE(MPH) E 18 E 19 E 18
MIXING HGT(FT-AGL/MSL)5440 4720
TRANSPORT WND (MPH) E 26 E 28
VENT RATE (KT-FT) 125120 113280
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page